WO2019069396A1

WO2019069396A1 - Solar cell module

Info

Publication number: WO2019069396A1
Application number: PCT/JP2017/036129
Authority: WO
Inventors: 裕幸神納; 淳赤司
Original assignee: パナソニック株式会社
Priority date: 2017-10-04
Filing date: 2017-10-04
Publication date: 2019-04-11

Abstract

In the present invention, in a solar cell panel 110, a plurality of solar cell strings are arranged side by side, and on one end side of the plurality of solar cell strings, a first bridging wiring member 26a to a third bridging wiring member 26c, all extending in the direction in which the plurality of solar cell strings are arranged side by side, are disposed. A first short frame 10a is attached to a first end edge 116a of the solar cell panel 110 on the side on which the first bridging wiring member 26a to the third bridging wiring member 26c are disposed. The short frame 10a has an upper flange section 56 that covers the first bridging wiring member 26a to the third bridging wiring member 26c of the solar cell panel 110 from a light-receiving surface side.

Description

Solar cell module

The present invention relates to a solar cell module, and more particularly, to a solar cell module in which a frame is attached to a solar cell panel.

In the solar cell module, a frame is attached to the edge of the solar cell panel, and a terminal box is installed on the edge of the solar cell panel on the back side of the solar cell panel. In the frame, the hollow body is disposed below the recess for fitting the edge of the solar cell panel. The overhang on the light receiving surface side of the recess is a ridge, and the ridge covers the light receiving surface of the solar cell panel located on the terminal box (see, for example, Patent Document 1).

International Publication No. 14/076952

In a solar cell panel, a plurality of solar cell strings in which a plurality of solar cells are arranged in one direction and connected in series are arranged in another direction. Wiring members for connecting the solar cell strings and extending in a direction in which the solar cell strings are arranged are disposed on both end sides of the plurality of solar cell strings. When such a solar cell panel is viewed from the light receiving surface side, the designability is lowered by the fact that the wiring material is visible.

The present invention has been made in view of such a situation, and an object thereof is to provide a technique for suppressing a decrease in design of a solar cell module.

In order to solve the above problems, in the solar cell module according to an aspect of the present invention, a plurality of solar cell strings are arranged side by side, and a direction in which the plurality of solar cell strings are arranged at one end side of the plurality of solar cell strings And a frame attached to an end edge of the solar cell panel on the side where the wiring material is disposed. A flame | frame has a collar part which covers the wiring material of a solar cell panel from the light-receiving surface side.

ADVANTAGE OF THE INVENTION According to this invention, the fall of the designability of a solar cell module can be suppressed.

It is a figure which shows the structure of the solar cell module which concerns on an Example. 2 (a)-(b) are diagrams showing a partial structure of the solar cell panel of FIG. It is sectional drawing which shows the structure of the solar cell module of FIG. FIGS. 4 (a) to 4 (c) are diagrams showing the structures of the first long frame, the first short frame, and the second short frame of FIG. It is another sectional view which shows the structure of the solar cell module of FIG.

Before specifically explaining the present invention, an outline will be given. An embodiment of the present invention relates to a solar cell module in which a frame is attached to each side of a solar cell panel. In the solar cell panel, a solar cell string is formed by connecting a plurality of solar cells arranged in the first direction in series. Also, the plurality of solar cell strings may be arranged in a second direction different from the first direction. In order to connect such a plurality of solar cell strings in series, a wiring material extending in a second direction to connect the solar cell strings on both ends of the plurality of solar cell strings (hereinafter referred to as “cross wiring material ) Are arranged. When the solar cell panel is viewed from the light receiving surface side, since the crossover wiring material can be seen, the designability is reduced.

In the frame according to the present embodiment, in the frame according to the present embodiment to suppress a decrease in designability, a ridge portion (hereinafter referred to as “upper ridge portion”) that is a protrusion on the light receiving surface side among fitting portions into which the edge of the solar cell panel is fitted Is extended to a position covering the crossover wiring material of the solar cell panel from the light receiving surface side. Therefore, in the solar cell module in which the frame is attached to the solar cell panel, the upper wiring portion hides the crossover wiring material. In the following description, "parallel" includes not only perfect parallel but also cases of deviation from parallel in the range of errors. In addition, “approximately” means that they are the same within the approximate range.

FIG. 1 shows the structure of a solar cell module 100 according to an embodiment, in particular, the structure when the solar cell module 100 is viewed from the light receiving surface side. 2 (a) and 2 (b) are diagrams showing a partial structure of the solar cell panel 110. FIG. As shown in FIG. 1 and FIGS. 2 (a) and 2 (b), an orthogonal coordinate system including x-axis, y-axis and z-axis is defined. The x axis and the y axis are orthogonal to each other in the plane of the solar cell module 100. The z-axis is perpendicular to the x-axis and the y-axis, and extends in the thickness direction of the solar cell module 100. In addition, the positive direction of each of the x-axis, y-axis and z-axis is defined in the direction of the arrow in FIG. 1 and FIGS. 2 (a)-(b), and the negative direction is in the direction opposite to the arrow It is prescribed. Of the two main surfaces forming the solar cell module 100 and parallel to the xy plane, the main plane disposed on the positive direction side of the z axis is the light receiving surface 112, and z The main plane disposed on the negative direction side of the axis is the back surface 114. Hereinafter, the positive direction side of the z axis may be referred to as the “light receiving surface side”, and the negative direction side of the z axis may be referred to as the “back side”. Also, the y-axis direction corresponds to the first direction described above, and the x-axis direction corresponds to the second direction described above.

The solar cell module 100 includes a first short frame 10a collectively referred to as a short frame 10, a second short frame 10b, a first long frame 12a collectively referred to as a long frame 12, a second long frame 12b, and a solar cell panel 110. . Further, the solar cell panel 110 is generically referred to as 1-1 solar cell cells 20aa collectively referred to as solar cell cells 20, ..., 8-12 solar battery cells 20hl, inter-cell wiring material 24, and crossover wiring material 26. First connecting wire 26a, second connecting wire 26b, third connecting wire 26c, fourth connecting wire 26d, fifth connecting wire 26e, sixth connecting wire 26f, seventh connecting wire 26g And an eighth transition wiring member 26h, a ninth transition wiring member 26i, and a cell end wiring member 28.

Each of the plurality of solar cells 20 absorbs incident light to generate photovoltaic power. The solar battery cell 20 is formed of, for example, a semiconductor material such as crystalline silicon, gallium arsenide (GaAs) or indium phosphide (InP). Although the structure of the photovoltaic cell 20 is mentioned later, it is supposed that it is a heterojunction-type photovoltaic cell here, for example. Although not shown in FIGS. 1 and 2 (a)-(b), on the light receiving surface and the back surface of each solar battery cell 20, a plurality of finger electrodes extending in the x-axis direction parallel to each other and a plurality of finger electrodes And a plurality of, for example, three bus bar electrodes extending in the y-axis direction so as to be orthogonal to the direction. The bus bar electrode connects each of the plurality of finger electrodes. The bus bar electrodes and the finger electrodes are formed of, for example, silver paste or the like. In addition, the structure which makes the whole back surface an electrode may be sufficient.

The plurality of solar cells 20 are arranged in a matrix on the xy plane. Here, as an example, eight solar battery cells 20 are arranged in the x-axis direction, and twelve solar battery cells 20 are arranged in the y-axis direction. The number of solar cells 20 arranged in the x-axis direction and the number of solar cells 20 arranged in the y-axis direction are not limited to this. Twelve solar cells 20 arranged side by side in the y-axis direction are connected in series by inter-cell wiring members 24 to form one solar cell string 22. For example, the first solar cell string 22a is formed by connecting the 1-1 solar cell 20aa to the 1-12 solar cell 20al, and the 4-1 solar cell 20da to the 4-12 solar cell 20dl. Are connected to form a fourth solar cell string 22d. Other solar cell strings 22 are similarly formed. As a result, eight solar cell strings 22 are aligned in the x-axis direction.

In order to form the solar cell string 22, the inter-cell wiring member 24 connects the bus bar electrode on one light receiving surface side of the adjacent solar cells 20 and the bus bar electrode on the other back surface side. For example, the three inter-cell wiring members 24 for connecting the 4-1st photovoltaic cell 20da and the 4-2nd photovoltaic cell 20db are bus bar electrodes on the light receiving surface side of the 4-1rd photovoltaic cell 20da. It electrically connects with the bus-bar electrode of the back side of the 4th-2nd photovoltaic cell 20db.

As shown to Fig.2 (a), in the solar cell panel 110, the 1st non electric power generation area | region 30 is arrange | positioned rather than the some photovoltaic cell 20 in the positive direction side of the y-axis. Further, as shown in FIG. 2 (b), in the solar cell panel 110, the second non-power generation region 32 is arranged on the negative direction side of the y axis with respect to the plurality of solar cells 20. The solar battery cell 20 is not disposed in the first non-power generation region 30 and the second non-power generation region 32. In the first non-power generation region 30, the first crossover wiring member 26a to the fifth crossover wiring member 26e are disposed, and in the second non-power generation region 32, the sixth crossover wiring member 26f to the ninth crossover wiring member 26i are disposed. Be done. The first transition wiring member 26 a is connected to the 1-1st solar cell 20 aa of the first solar cell string 22 a via the cell end wiring member 28. Here, the cell end wiring member 28 is a wiring member for connecting the solar battery cell 20 disposed at the end of the solar cell string 22 and the crossover wiring member 26, and the light receiving surface or the back surface of the solar battery cell 20 , And the inter-cell wiring member 24. The first crossover wiring member 26 a extends from the connecting portion with the cell end wiring member 28 in the positive direction of the x-axis, reaches around the center of the solar cell module 100 in the x-axis direction, and is connected to a terminal box not shown.

The second transition wiring member 26 b is connected to the 2-1 solar cell 20 ba of the second solar cell string 22 b via the cell end wiring member 28. In addition, the second transition wiring member 26 b is also connected to the 3-1st solar cell 20 ca of the third solar cell string 22 c via another cell end wiring member 28. By these connections, the second transition wiring member 26 b electrically connects the second solar cell string 22 b and the third solar cell string 22 c. The second crossover wiring member 26b also extends in the x-axis direction, reaches around the center of the solar cell module 100 in the x-axis direction, and is connected to a terminal box (not shown).

The third transition wiring member 26c is connected to the fourth-1 solar cell 20da of the fourth solar cell string 22d via the cell end wiring member 28. In addition, the third transition wiring member 26c is also connected to the 5-1st solar cell 20ea of the fifth solar cell string 22e via another cell end wiring member 28. By these connections, the third transition wiring member 26c electrically connects the fourth solar cell string 22d and the fifth solar cell string 22e. Thus, the third crossover wiring member 26c extends in the x-axis direction while crossing the vicinity of the center of the solar cell module 100 in the x-axis direction. The third crossover wiring member 26c is also connected to the terminal box. The fourth crossover wiring member 26d and the fifth crossover wiring member 26e are arranged so as to be reversed in the x-axis direction with respect to the second crossover wiring member 26b and the first crossover wiring member 26a.

Each of the sixth crossover wiring 26f to the ninth crossover wiring 26i extends in the x-axis direction, and is electrically connected to the two adjacent solar cell strings 22 via the cell end wiring 28. For example, the sixth transition wiring member 26f is connected to the (1-12) solar cells 20al of the first solar cell string 22a and the 2-12th solar cells 20bl of the second solar cell string 22b. By using such transition wiring members 26, the first solar cell string 22a to the eighth solar cell string 22h are electrically connected in series.

As shown in FIG. 2B, in the second non-power generation region 32, the sixth connection wiring member 26f to the ninth connection wiring member 26i are arranged side by side in the x-axis direction. From the point of view, only one row of crossover wiring members 26 is disposed. On the other hand, as shown in FIG. 2A, in the first non-power generation region 30, the third crossover wiring member 26c is disposed closest to the plurality of solar cells 20. Further, the second crossover wiring member 26b and the fourth inter-cell wiring member 24d are disposed on the positive direction side of the y axis thereof, and the first crossover wiring member 26a and the fifth crossover wiring member are arranged on the positive direction side of the y axis thereof. 26e is placed. When these are viewed in the y-axis direction, three rows of connecting members 26 are arranged. Therefore, the number of rows of the crossover wiring members 26 in the second non-power generation region 32 is smaller than the number of rows of the crossover wiring members 26 in the first non-power generation region 30. As a result, the distance between the second end 116b and the sixth connecting member 26f is shorter than the distance between the first end 116a and the third connecting member 26c. The former indicates the distance between the crossover wiring member 26 farthest from the second edge 116 b of the second non-power generation region 32 and the second edge 116 b, and the latter indicates the distance of the first non-power generation region 30. The distance between the interconnect material 26 farthest from the first end edge 116a thereof and the first end edge 116a is shown. The number of rows of the crossover wiring members 26 in the second non-power generation region 32 and the number of rows of the crossover wiring members 26 in the first non-power generation region 30 are not limited to “1” and “3”.

The solar cell panel 110 is surrounded by four edges 116 generally referred to as a first edge 116 a, a second edge 116 b, a third edge 116 c, and a fourth edge 116 d. A short frame 10 extending in the x-axis direction is attached to the first edge 116 a and the second edge 116 b at both ends of the solar cell panel 110 in the y-axis direction. A long frame 12 extending in the y-axis direction is attached to the third edge 116c and the fourth edge 116d at both ends of the solar cell panel 110 in the x-axis direction. The adjacent short frame 10 and the long frame 12 are connected to each other, so that the two short frames 10 and the two long frames 12 are arranged in a frame shape surrounding the solar cell panel 110. The short frame 10 and the long frame 12 are formed of, for example, aluminum or an aluminum alloy in order to protect the solar cell panel 110. The structures of the short frame 10 and the long frame 12 will be described later.

FIG. 3 is a cross-sectional view showing the structure of the solar cell module 100, and is a cross-sectional view taken along the line A-A 'of FIG. The solar cell module 100 includes a first short frame 10 a, a second short frame 10 b, a terminal box 14, and a solar cell panel 110. The solar cell panel 110 is generally referred to as solar cell 20. The fourth solar cell 20da, the fourth solar cell 20db, the fourth 4-12 solar cell 20dl, the inter-cell wiring member 24, the first crossover Wiring member 26a, second crossover wiring member 26b, third crossover wiring member 26c, seventh crossover wiring member 26g, cell end wiring member 28, first protective member 40a collectively referred to as protective member 40, second protective member 40b, A sealing member 42 is included. The upper side of FIG. 3 corresponds to the light receiving surface side, and the lower side corresponds to the back surface side.

The first protective member 40 a is disposed on the light receiving surface side of the solar cell panel 110 and protects the surface of the solar cell panel 110. For the first protective member 40a, glass having a light transmitting property and a water shielding property, a light transmitting plastic, or the like is used, and is formed in a rectangular plate shape. Here, it is assumed that glass is used as an example. The sealing member 42 is stacked on the back surface side of the first protection member 40 a. The sealing member 42 is disposed between the first protective member 40 a and a second protective member 40 b described later to bond them. In addition, the sealing member 42 seals the plurality of solar cells 20, the inter-cell wiring member 24, and the like.

As the sealing member 42, for example, a thermoplastic resin such as a resin film such as polyolefin, EVA (ethylene-vinyl acetate copolymer), PVB (polyvinyl butyral), or polyimide is used. In addition, thermosetting resin may be used. The sealing member 42 is formed of a rectangular sheet material having translucency and having a surface substantially the same size as the xy plane of the first protective member 40a.

The second protective member 40 b is stacked on the back surface side of the sealing member 42. The second protective member 40 b protects the back side of the solar cell panel 110 as a back sheet. As the 2nd protection member 40b, resin films, such as PET (polyethylene terephthalate), are used, for example. In addition, the laminated film etc. which have a structure which pinched | interposed Al foil with the resin film may be used as the 2nd protection member 40b, and glass may be used.

A terminal box 14 is disposed on the back side of the solar cell panel 110. Further, one end side of each of two cables (not shown) is connected to the terminal box 14, and a connector is connected to the other end side of each of the two cables. The terminal box 14, the cable, and the connector are electrically connected to the solar cell panel 110 and draw power from the solar cell panel.

The short frame 10, which collectively refers to the first short frame 10a and the second short frame 10b, includes a fitting portion 50, a main body portion 52, and a lower collar portion 54. The fitting portion 50 includes the upper collar portion 56, and the main body portion 52 includes the top surface portion 58, the hollow portion 60, the bottom surface portion 62, and the lower surface portion 64. Here, the fitting portion 50, the main body portion 52, and the lower collar portion 54 are integrally formed by extrusion molding. Hereinafter, the structure of the first short frame 10a will be described, and then the structure of the second short frame 10b will be described. The first short frame 10a is attached to the first edge 116a of the solar cell panel 110 on the side where the first transition wiring member 26a to the fifth transition wiring member 26e are disposed.

The fitting portion 50 is disposed on the light receiving surface side of the main body portion 52 described later and combined with the top surface portion 58 of the main body portion 52 to have a cross section depressed in the positive direction side of the y axis, that is, a concave cross section. . With such a shape, the first end 116a of the solar cell panel 110 is fitted into the fitting portion 50 from the negative direction side of the y axis, and the light receiving surface 112 and the back surface 114 of the solar cell panel 110 are sandwiched. The fitting portion 50 and the top surface portion 58 and the solar cell panel 110 are fixed by a butyl-based sealing material or a silicon-based adhesive.

Here, among the two overhangs forming the concave cross section in the fitting portion 50, the overhang on the light receiving surface side is the upper collar portion 56, and the overhang on the back surface side is the top surface portion 58. The upper collar portion 56 extends in the negative direction side of the y-axis from the positive direction side end of the y-axis of the fitting portion 50 to the position between the third connecting member 26c and the fourth-1 solar cell 20da. That is, the upper collar portion 56 covers the first crossover wiring member 26 a to the fifth crossover wiring member 26 e of the solar cell panel 110 from the light receiving surface side, and receives at least a part of the cell end wiring member 28 of the solar cell panel 110. It has a shape that covers from the surface side. On the other hand, the upper ridge portion 56 has a shape that does not cover the four-first photovoltaic cell 20da from the light receiving surface side.

On the other hand, the top surface portion 58 extends in the negative direction side of the y axis from the positive direction side end of the y axis of the fitting portion 50, but has a length that does not reach the first crossover wiring member 26a. With such a structure, the first crossover wiring member 26 a to the fifth crossover wiring member 26 e of the solar cell panel 110 are not sandwiched by the upper collar portion 56 and the top surface portion 58. This is because the first crossover wiring member 26 a to the fifth crossover wiring member 26 e are degraded when the insulation performance is lowered due to the deterioration of the protective member 40 and the sealing member 42 due to the hydrolysis by the moisture entering the fitting portion 50. Is to prevent the top surface portion 58 from contacting.

The main body portion 52 is disposed on the back side of the fitting portion 50. A top surface portion 58 is disposed on the light receiving surface side of the main body portion 52 so as to face the upper collar portion 56. The lower surface 64 is disposed on the back surface side of the top surface 58 on the negative side of the top surface 58 in the negative y-axis direction. The lower surface portion 64 faces the first crossover wiring member 26 a in the z-axis direction, but is separated from the second protective member 40 b of the solar cell panel 110 in the z-axis direction. Therefore, the influence of the aforementioned hydrolysis is reduced. Further, the main body portion 52 extends from the top surface portion 58 to the back surface side, and includes the hollow portion 60 with a hollow structure. A bottom surface 62 is disposed on the back surface side of the main body 52. In the bottom portion 62, a lower collar portion 54 extending in the negative direction of the y axis is disposed

Next, the structure of the second short frame 10b will be described. The second short frame 10b is attached to the second edge 116b of the solar cell panel 110 on the side where the sixth connection wiring member 26f to the ninth connection wiring member 26i are disposed. Since the second short frame 10b has a structure similar to the first short frame 10a, the difference will be mainly described here. As shown in FIG. 3, the second short frame 10 b faces the first short frame 10 a in the y-axis direction in the opposite direction. The upper ridge portion 56 of the second short frame 10 b extends from the negative side end of the fitting portion 50 in the y direction to the position between the seventh connecting member 26 g and the 4-12 solar cell 20 dl in the positive direction of the y axis Extend to the side. That is, the upper collar portion 56 covers the sixth transition wiring member 26f of the solar cell panel 110 to the ninth transition wiring member 26i from the light receiving surface side, and receives at least a part of the cell end wiring member 28 of the solar cell panel 110 It has a shape that covers from the surface side. On the other hand, the upper ridge portion 56 has a shape that does not cover the fourth to twelfth solar battery cells 20dl from the light receiving surface side. Here, in the y-axis direction, the length of the upper collar portion 56 in the second short frame 10b is shorter than the length of the upper collar portion 56 in the first short frame 10a. This is because, as described above, the distance from the second end 116b to the sixth connection wiring 26f and the like is shorter than the distance from the first end 116a to the third connection wiring 26c.

Here, the structure of the long frame 12 will be described in comparison with such a first short frame 10a and a second short frame 10b. 4 (a) to 4 (c) show the structures of the first long frame 12a, the first short frame 10a, and the second short frame 10b of FIG. FIG. 4A shows the first long frame 12a, but the second long frame 12b has a similar structure. 4 (b) shows the first short frame 10a, and FIG. 4 (c) shows the second short frame 10b, which are identical to FIG.

As shown in FIGS. 1 and 2 (a)-(b), the first long frame 12a is attached to the third edge 116c of the solar cell panel 110 on which the transition wiring member 26 is not disposed. The fitting portion 70, the main body portion 72, the lower collar portion 74, the upper collar portion 76, the top surface portion 78, the hollow portion 80, the bottom portion 82 and the lower surface portion 84 in the first long frame 12a The main body 52, the lower collar 54, the upper collar 56, the top surface 58, the hollow 60, the bottom 62, and the lower surface 64 correspond to each other. The upper ridge portion 76 of the first long frame 12 a covers the solar cell panel 110 from the light receiving surface side. On the other hand, the upper ridge portion 76 of the first long frame 12a does not cover the first solar cell string 22a from the light receiving surface side. Here, the length of the upper collar portion 76 of the first long frame 12 a in the x-axis direction is shorter than the length of the upper collar portion 56 of the short frame 10 in the y-axis direction. This is because the crossover wiring member 26 is not disposed at the third end 116c to which the first long frame 12a is attached. The terminal box 14 is disposed at a position different from the position covered by the upper collar portion 56 of the short frame 10 and the upper collar portion 76 of the long frame 12.

FIG. 5 is another cross-sectional view showing the structure of the solar cell module 100, and is a cross-sectional view taken along the line A-A 'of FIG. Here, the shapes of the main body portion 52 of the first short frame 10a and the main body portion 52 of the second short frame 10b are different compared to FIG. The main body 52 has a rectangular cross section, and includes a hollow portion 60.

According to the embodiment of the present invention, since the upper collar portion 56 covers the crossover wiring member 26 of the solar cell panel 110 from the light receiving surface side, the crossover wiring member 26 is noticeable when the solar cell module 100 is viewed from the light receiving surface side. It can be lost. Further, when the solar cell module 100 is viewed from the light receiving surface side, the wiring member 26 does not stand out, so that it is possible to suppress a decrease in design of the solar cell module 100. In addition, since the length of the upper collar portion 56 in the second short frame 10b is shorter than the length of the upper collar portion 56 in the first short frame 10a, the crossover wiring member 26 is hidden according to the layout of the crossover wiring member 26. be able to. In addition, since the length of the upper collar portion 56 in the second short frame 10b is shorter than the length of the upper collar portion 56 in the first short frame 10a, it is possible to prevent the solar battery cell 20 from being hidden. Further, since the length of the upper ridge portion 76 in the long frame 12 is shorter than the length of the upper ridge portion 56 in the short frame 10, it is possible to prevent the solar battery cell 20 from being hidden.

Further, since the terminal box 14 is disposed at a position different from the position covered by the upper collar portion 56 of the short frame 10 and the upper collar portion 76 of the long frame 12, the terminal box 14 is separated from the short frame 10 and the long frame 12. Can be placed. In addition, since the upper collar portion 56 of the short frame 10 covers at least a part of the cell end wiring member 28 of the solar cell panel 110 from the light receiving surface side, the cell end wiring when the solar cell module 100 is viewed from the light receiving surface side The material 28 can be made inconspicuous. In addition, since the cell end wiring member 28 becomes inconspicuous when the solar cell module 100 is viewed from the light receiving surface side, it is possible to suppress a decrease in design of the solar cell module 100. In addition, since the top surface portion 58 is disposed so as not to reach the crossover wiring member 26 of the solar cell panel 110, insulation can be ensured even when hydrolysis occurs.

The outline of this embodiment is as follows. The solar cell module 100 according to an aspect of the present invention has a plurality of solar cell strings 22 arranged side by side, and at one end of the plurality of solar cell strings 22, a crossover wiring extending in the direction in which the plurality of solar cell strings 22 are arranged. The solar cell panel 110 on which the material 26 is disposed, and the short frame 10 attached to the edge 116 of the solar cell panel 110 on the side on which the crossover wiring material 26 is disposed. The short frame 10 has an upper collar portion 56 that covers the crossover wiring member 26 of the solar cell panel 110 from the light receiving surface side.

In the solar cell panel 110, a cell end wiring member 28 for connecting the solar cells 20 on one end side of the plurality of solar cell strings 22 and the crossover wiring member 26 is disposed, and the upper ridge portion 56 of the short frame 10 At least a part of the cell end wiring member 28 of the battery panel 110 may be covered from the light receiving surface side.

The upper ridge portion 56 of the short frame 10 may not cover the solar cells 20 on one end side of the plurality of solar cell strings 22 from the light receiving surface side.

In the solar cell panel 110, another crossover wiring member 26 extending in the direction in which the plurality of solar cell strings 22 are arranged is also arranged on the other end side of the plurality of solar cell strings 22. In the solar cell panel 110, the distance between the other edge 116 on the side on which the other crossover wiring material 26 is disposed and the other crossover wiring material 26 farthest from the other edge 116 is the crossover wiring Unlike the distance between the edge 116 on the side where the material 26 is disposed and the crossover wiring material 26 farthest from the edge 116, the solar cell module 100 is disposed on the side on which the other crossover wiring material 26 is disposed. It may further comprise another short frame 10 attached to another edge 116 of the solar cell panel 110 of FIG. Another short frame 10 may have an upper collar portion 56 that covers another crossover wiring member 26 of the solar cell panel 110 from the light receiving surface side. In the other short frame 10, the length of the upper collar portion 56 in the direction from the other edge 116 of the solar cell panel 110 to the other transition wiring member 26 is the edge of the solar cell panel 110 in the short frame 10. It may be different from the length of the upper collar portion 56 in the direction from the wiring 116 to the crossover wiring member 26.

It may further include a long frame 12 attached to the other edge 116 of the solar cell panel 110 on the side where the crossover wiring 26 and the other crossover wiring 26 are not disposed. The long frame 12 may have an upper collar portion 76 that covers the solar cell panel 110 from the light receiving surface side. In the long frame 12, the length of the upper ridge portion 76 in the direction from the other edge 116 of the solar cell panel 110 toward the solar cell string 22 is the solar cell panel 110 in the short frame 10 and the other short frame 10. The length of the upper ridge portion 56 in the direction from the end edge 116 or the other end edge 116 to the crossover wiring member 26 or the other crossover wiring member 26 is shorter.

It may further include a terminal box 14 disposed on the back side of the solar cell panel 110. The terminal box 14 may be disposed at a position different from the position covered by the upper hook portion 56 of the short frame 10, the upper hook portion 56 of another short frame 10, and the upper hook portion 76 of the long frame 12.

The short frame 10 may include a fitting portion 50 that sandwiches the light receiving surface side and the back surface side of the solar cell panel 110. The overhang on the light receiving surface side of the fitting portion 50 may be the upper collar portion 56, and the overhang on the back surface side of the fitting portion 50 may not reach the crossover wiring member 26 of the solar cell panel 110.

The present invention has been described above based on the embodiments. It is understood by those skilled in the art that this embodiment is an exemplification, and that various modifications can be made to their respective components or combinations of processing processes, and such modifications are also within the scope of the present invention. .

10 short frame (frame, another frame), 12 long frame (still another frame), 14 terminal box, 20 solar cells, 22 solar cell strings, 24 inter-cell wiring material, 26 crossover wiring material (wiring material), 28 cell end wiring material, 40 protective members, 42 sealing members, 50 fitting parts, 52 main body parts, 54 lower collar parts, 56 upper collar parts (barbed parts), 58 top surface parts, 60 hollow parts, 62 bottom parts, 64 lower surface part, 70 fitting part, 72 main body part, 74 lower ridge part, 76 upper ridge part (hatched part), 100 solar cell module, 110 solar cell panel, 116 edge.

Claims

A solar cell panel in which a plurality of solar cell strings are arranged side by side, and a wiring member extending in a direction in which the plurality of solar cell strings are arranged is arranged on one end side of the plurality of solar cell strings;
And a frame attached to an edge of the solar cell panel on the side where the wiring material is disposed,
The solar cell module, wherein the frame has a ridge portion covering the wiring member of the solar cell panel from the light receiving surface side.
In the solar cell panel, a cell end wiring member for connecting the solar cells on one end side of the plurality of solar cell strings and the wiring member is disposed.
The solar cell module according to claim 1, wherein the ridge portion of the frame covers at least a part of the cell end wiring member of the solar cell panel from a light receiving surface side.
The solar cell module according to claim 1 or 2, wherein the ridge portion of the frame does not cover the solar cells on one end side of the plurality of solar cell strings from the light receiving surface side.
In the solar cell panel, another wiring member extending in the direction in which the plurality of solar cell strings are arranged is disposed also on the other end side of the plurality of solar cell strings,
In the solar cell panel, the wiring material is disposed at a distance between the other edge on the side where the other wiring material is disposed and the other wiring material farthest from the other edge. Different from the distance between the edge on the side and the wiring material farthest from the edge,
The solar cell module further comprises another frame attached to another edge of the solar cell panel on the side where the other wiring member is disposed,
The another frame has a ridge portion covering the other wiring member of the solar cell panel from the light receiving surface side,
In the other frame, the length of the ridge in the direction from the other edge of the solar cell panel to the other wiring member is the same as the distance from the edge of the solar cell panel to the wiring material in the frame The solar cell module according to any one of claims 1 to 3, which is different from the length of the ridge in the heading direction.
It further comprises a further frame attached to the other edge of the solar cell panel on the side where the wiring material and the other wiring material are not disposed,
The still another frame has a ridge portion covering the solar cell panel from the light receiving surface side,
In the still another frame, the length of the ridge in the direction from the still another edge of the solar panel to the solar cell string is the edge of the solar panel in the frame and the further frame Alternatively, the solar cell module according to claim 4, characterized in that the length of the ridge portion in the direction from the other edge toward the wiring material or the other wiring material is shorter.
It further comprises a terminal box disposed on the back side of the solar cell panel,
The terminal box is disposed at a position different from the position covered by the ridges of the frame, the ridges of the another frame, and the ridges of the further frame. The solar cell module according to 5.
The frame includes a fitting portion sandwiching the light receiving surface side and the back surface side of the solar cell panel,
An overhang on the light receiving surface side in the fitting portion is the ridge portion, and an overhang on the back surface side in the fitting portion is not reaching the wiring member of the solar cell panel. The solar cell module according to 1.